Question

Fill in the blanks
Structure of stem
Herbs ,...............,shrubs, and trees

Answer 1

Hi thank you for asking the question.
These options are all about classification of plant kingdom on the basis of there growth size 
The answer for the blanks should be vines or crawlers
Vines are the plant that grow on the walls climbing up the wall by sticking to it. They lack ling stiff stem and need some support to grow vertically
Hope this answer helps you 
If if did kindly mark the answer as brainliest
Thank you

Answer 2

Based on the structure of their stems, plants are classified into herbs, shrubs, trees, creepers, and climbers.

Herbs have delicate green stems, while shrubs have bushy and hard stems with branches. Trees have thicker and harder stems known as trunks. Creepers have very easily breakable stems that cannot bear the plants’ weight. Climbers have weaker stems that are stronger than that of creepers.